firefox security update

2021-03-2618:11:51

CentOS Project

lists.centos.org

123

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

7.5 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

0.003 Low

EPSS

Percentile

67.3%

JSON

CentOS Errata and Security Advisory CESA-2021:0992

Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability.

This update upgrades Firefox to version 78.9.0 ESR.

Security Fix(es):

Mozilla: Texture upload into an unbound backing buffer resulted in an out-of-bound read (CVE-2021-23981)
Mozilla: Memory safety bugs fixed in Firefox 87 and Firefox ESR 78.9 (CVE-2021-23987)
Mozilla: Internal network hosts could have been probed by a malicious webpage (CVE-2021-23982)
Mozilla: Malicious extensions could have spoofed popup information (CVE-2021-23984)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Merged security bulletin from advisories:
https://lists.centos.org/pipermail/centos-announce/2021-March/086087.html

Affected packages:
firefox

Upstream details at:
https://access.redhat.com/errata/RHSA-2021:0992

OSVersionArchitecturePackageVersionFilename
CentOS7i686firefox< 78.9.0-1.el7.centosfirefox-78.9.0-1.el7.centos.i686.rpm
CentOS7x86_64firefox< 78.9.0-1.el7.centosfirefox-78.9.0-1.el7.centos.x86_64.rpm

OS	Version	Architecture	Package	Version	Filename
CentOS	7	i686	firefox	< 78.9.0-1.el7.centos	firefox-78.9.0-1.el7.centos.i686.rpm
CentOS	7	x86_64	firefox	< 78.9.0-1.el7.centos	firefox-78.9.0-1.el7.centos.x86_64.rpm